213148770 has 64 divisors (see below), whose sum is σ = 523272960. Its totient is φ = 55554048.

The previous prime is 213148763. The next prime is 213148781. The reversal of 213148770 is 77841312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258579 + ... + 259401.

It is an arithmetic number, because the mean of its divisors is an integer number (8176140).

Almost surely, 2^213148770 is an apocalyptic number.

213148770 is an abundant number, since it is smaller than the sum of its proper divisors (310124190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213148770 is a wasteful number, since it uses less digits than its factorization.

213148770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 213148770 is about 14599.6154058934. The cubic root of 213148770 is about 597.3482700341.

The spelling of 213148770 in words is "two hundred thirteen million, one hundred forty-eight thousand, seven hundred seventy".